Home Collection Eco-Worthy 12V 20A & 40A DC to DC Charger On-Board MPPT Battery Charger
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Eco-Worthy 12V 20A & 40A DC to DC Charger On-Board MPPT Battery Charger

Eco-Worthy 12V 20A & 40A DC to DC Charger On-Board MPPT Battery Charger

Regular price £99.99
Sale price £99.99 Regular price £139.99
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SKU:

SKU:UK-L03DCDC20A-1

[Multi-Input 40A Efficient Charging]-ECO-WORTHY 40A DC-DC charger supports alternator and solar panel input. This multi-stage charger provides stable charging for AGM, GEL, lead-acid, lithium, and calcium batteries, making it ideal for RV, camper, marine, and off-grid dual battery systems.

[Safe One-Way Charging Design]-Built-in starter and house battery isolation allows one-way charging only, preventing the house battery from draining the starter battery. Improves safety and ensures your vehicle always has enough power to start when needed.

[Full Protection System]-Equipped with multiple safety protections including starter battery low-voltage protection, overcharge protection, overload protection, and short-circuit protection. Keeps both starter and service batteries safe during charging in all conditions.

[Smart MPPT Solar Charging]-Integrated MPPT controller improves solar charging efficiency and supports automatic charging memory. IP65 waterproof design allows reliable operation in outdoor environments, perfect for RV, boat, and off-grid solar charging systems.

[Easy Installation & Status Indicator]-Clearly labeled wiring ports for solar, alternator, and battery connections make installation simple. LED indicators show charging status and help quickly identify wiring issues, ensuring stable and reliable system operation.

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On-Board MPPT Battery Charger

Eco-Worthy 20A、40A DC to DC charger has unique charging options. This multi-stage, multi-input battery charger can charge home batteries by connecting to the starter battery of a car alternator or by connecting a solar panel directly to the unit. Provides proper charging for AGM/GEL, Lead acid, Lithium and Calcium batteries.

Technical Specifications

12V 20A DC to DC Charger
12V 40A DC to DC Charger

Type:

Multi Stage

DC battery Input:

12.4-16.0V

Output / Charging Voltage:

14.4-15.4V

DC Output:

20A

Minimum Start Voltage:

2.0V-For Battery Being Charged

Soft Start:

Yes

Soft Charge Current:

20A

Solar Output:

16-25V

Solar input:

Type:

Multi Stage

DC battery Input:

12.4-16.0V

Solar input:

16-25V

Output / Charging Voltage:

14.4-15.4V

DC Output:

40A

Solar Output:

40A

Minimum Start Voltage:

2.0V-For Battery Being Charged

Soft Start:

Yes

Soft Charge Current:

40A

Included in the Box
  1. 20A DC to DC Charger
  1. 40A DC to DC Charger
  1. 20A DC to DC Charger
  2. 1X12v 100AH Lithium Battery
  3. Accessories
  1. 20A DC to DC Charger
  2. 1X12v 280AH Lithium Battery
  3. Accessories
User manual

Eco-Worthy 12V 40A DC to DC Charger On Board MPPT Battery Charger- User Manual

Download

Eco-Worthy 12V 20A DC to DC Charger On Board MPPT Battery Charger- User Manual

Download

Frequently Asked Questions

Are Eco-Worthy batteries safe for home use?

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All Eco-Worthy batteries use LiFePO4 chemistry, one of the safest lithium technologies available. Our Cubix 100 batteries are UL1973 & UL9540A listed and meet CEC standards, Built-in BMS protection prevents overcharge, overheating, and short circuits—making it ideal for residential energy storage.

Will it work with my inverter/solar system?

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Yes. Our batteries are designed to be widely compatible with most 48V inverters and solar systems used in U.S. homes. For best performance, we recommend checking your inverter’s communication protocol or contacting our support team before purchase.

How much power do I actually need for my home?

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It depends on your usage: 5–10 kWh → essentials (fridge, lights, WiFi); 10–20 kWh → partial home backup; 20 kWh+ → whole-home coverage; Our systems are scalable, so you can start small and expand anytime.

Can I expand the system later?

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Absolutely. Eco-Worthy batteries support parallel expansion, allowing you to increase capacity as your energy needs grow—without replacing your existing system.

What kind of warranty and support do you offer?

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We provide up to a 10-year warranty on key battery models, along with U.S.-based support. Our team assists with installation guidance, troubleshooting, and system planning to ensure a smooth experience.